from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    # 应用配置
    APP_NAME: str = "销售业绩管理系统"
    DEBUG: bool = True
    
    # 数据库配置
    DATABASE_URL: str = "sqlite:///./sales_management.db"
    
    # JWT配置
    SECRET_KEY: str = "your-secret-key-here-change-in-production"
    ALGORITHM: str = "HS256"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24  # 24小时
    
    # 默认配置
    DEFAULT_SALARY_BASE_MIN: float = 4000.0
    DEFAULT_SALARY_BASE_MAX: float = 6000.0
    DEFAULT_SALARY_PERFORMANCE: float = 1000.0
    DEFAULT_SALARY_PERFORMANCE_THRESHOLD: float = 50.0
    
    DEFAULT_COMMISSION_AI_MODEL: float = 0.03
    DEFAULT_COMMISSION_CLOUD_BASE: float = 0.10
    DEFAULT_COMMISSION_MAIN_PRODUCT: float = 0.08
    
    DEFAULT_AGENT_EMPLOYEE_COMMISSION: float = 0.01
    DEFAULT_AGENT_PROFIT_SHARE_MIN: float = 0.60
    DEFAULT_AGENT_PROFIT_SHARE_MAX: float = 0.65
    
    class Config:
        env_file = ".env"


@lru_cache()
def get_settings():
    return Settings()